This article will teach you how to easily edit your Display Name in Roblox. All changes to your Display Name must adhere to Roblox Community Guidelines and you can only change it once every seven days.
How to Change Your Display Name on Roblox | Tech Insider
You have two names on Roblox: your username and your display name. To change your username, you need to spend 1,000 Robux, which is about $14.98 USD. You can change your display name at any time for free. However, you can only change your display name once every seven days.
The first way to change your Roblox Display Name is from the main website. Follow the steps below to get started.
On the Roblox homepage, find the gear icon in the top right corner and click on it.